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Finding the Fourth Proportional to 10,334.80, 15,502.20 and 10,248.40

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Solution

The fourth proportional to 10,334.80, 15,502.20 and 10,248.40 is: 15,372.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,334.80 : 15,502.20 = 10,248.40 : x
  2. Step 2: Convert to fraction form
    10,334.80/15,502.20 = 10,248.40/x
  3. Step 3: Cross multiply
    10,334.80x = 15,502.20 × 10,248.40
  4. Step 4: Simplify right side
    10,334.80x = 158,872,746.48
  5. Step 5: Solve for x
    x = 158,872,746.48/10,334.80
  6. Step 6: Final answer
    x = 15,372.60

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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.