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Finding the Fourth Proportional to 28,534,520, 42,792,789 and 9,360,809.12

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Solution

The fourth proportional to 28,534,520, 42,792,789 and 9,360,809.12 is: 14,038,264.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,534,520 : 42,792,789 = 9,360,809.12 : x
  2. Step 2: Convert to fraction form
    28,534,520/42,792,789 = 9,360,809.12/x
  3. Step 3: Cross multiply
    28,534,520x = 42,792,789 × 9,360,809.12
  4. Step 4: Simplify right side
    28,534,520x = 400,575,129,541,435.62
  5. Step 5: Solve for x
    x = 400,575,129,541,435.62/28,534,520
  6. Step 6: Final answer
    x = 14,038,264.16

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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.