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Finding the Fourth Proportional to 6,988.17, 9,641.32 and 4,746.16

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Solution

The fourth proportional to 6,988.17, 9,641.32 and 4,746.16 is: 6,548.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.17 : 9,641.32 = 4,746.16 : x
  2. Step 2: Convert to fraction form
    6,988.17/9,641.32 = 4,746.16/x
  3. Step 3: Cross multiply
    6,988.17x = 9,641.32 × 4,746.16
  4. Step 4: Simplify right side
    6,988.17x = 45,759,211.36
  5. Step 5: Solve for x
    x = 45,759,211.36/6,988.17
  6. Step 6: Final answer
    x = 6,548.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.