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Finding the Fourth Proportional to 28,473,470,519.80, 42,710,205,779.70 and 28,473,470,519.80

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Solution

The fourth proportional to 28,473,470,519.80, 42,710,205,779.70 and 28,473,470,519.80 is: 42,710,205,779.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,473,470,519.80 : 42,710,205,779.70 = 28,473,470,519.80 : x
  2. Step 2: Convert to fraction form
    28,473,470,519.80/42,710,205,779.70 = 28,473,470,519.80/x
  3. Step 3: Cross multiply
    28,473,470,519.80x = 42,710,205,779.70 × 28,473,470,519.80
  4. Step 4: Simplify right side
    28,473,470,519.80x = 1,216,107,785,162,879,401,984
  5. Step 5: Solve for x
    x = 1,216,107,785,162,879,401,984/28,473,470,519.80
  6. Step 6: Final answer
    x = 42,710,205,779.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.