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Finding the Fourth Proportional to 10,590.18, 15,854.07 and 7,829.16

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Solution

The fourth proportional to 10,590.18, 15,854.07 and 7,829.16 is: 11,720.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,590.18 : 15,854.07 = 7,829.16 : x
  2. Step 2: Convert to fraction form
    10,590.18/15,854.07 = 7,829.16/x
  3. Step 3: Cross multiply
    10,590.18x = 15,854.07 × 7,829.16
  4. Step 4: Simplify right side
    10,590.18x = 124,124,050.68
  5. Step 5: Solve for x
    x = 124,124,050.68/10,590.18
  6. Step 6: Final answer
    x = 11,720.67

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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.