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Finding the Fourth Proportional to 46,478.88, 69,624 and 21,484.22

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Solution

The fourth proportional to 46,478.88, 69,624 and 21,484.22 is: 32,182.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,478.88 : 69,624 = 21,484.22 : x
  2. Step 2: Convert to fraction form
    46,478.88/69,624 = 21,484.22/x
  3. Step 3: Cross multiply
    46,478.88x = 69,624 × 21,484.22
  4. Step 4: Simplify right side
    46,478.88x = 1,495,816,985.16
  5. Step 5: Solve for x
    x = 1,495,816,985.16/46,478.88
  6. Step 6: Final answer
    x = 32,182.72

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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.