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Finding the Fourth Proportional to 28,473.48, 42,711.35 and 10,702.35

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Solution

The fourth proportional to 28,473.48, 42,711.35 and 10,702.35 is: 16,053.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,473.48 : 42,711.35 = 10,702.35 : x
  2. Step 2: Convert to fraction form
    28,473.48/42,711.35 = 10,702.35/x
  3. Step 3: Cross multiply
    28,473.48x = 42,711.35 × 10,702.35
  4. Step 4: Simplify right side
    28,473.48x = 457,111,763.16
  5. Step 5: Solve for x
    x = 457,111,763.16/28,473.48
  6. Step 6: Final answer
    x = 16,053.95

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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.