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Finding the Fourth Proportional to 30,585.18, 45,870.18 and 8,397.46

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Solution

The fourth proportional to 30,585.18, 45,870.18 and 8,397.46 is: 12,594.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,585.18 : 45,870.18 = 8,397.46 : x
  2. Step 2: Convert to fraction form
    30,585.18/45,870.18 = 8,397.46/x
  3. Step 3: Cross multiply
    30,585.18x = 45,870.18 × 8,397.46
  4. Step 4: Simplify right side
    30,585.18x = 385,193,001.74
  5. Step 5: Solve for x
    x = 385,193,001.74/30,585.18
  6. Step 6: Final answer
    x = 12,594.11

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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.