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Finding the Fourth Proportional to 10,898.99, 15,041.10 and 6,422.93

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Solution

The fourth proportional to 10,898.99, 15,041.10 and 6,422.93 is: 8,863.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,898.99 : 15,041.10 = 6,422.93 : x
  2. Step 2: Convert to fraction form
    10,898.99/15,041.10 = 6,422.93/x
  3. Step 3: Cross multiply
    10,898.99x = 15,041.10 × 6,422.93
  4. Step 4: Simplify right side
    10,898.99x = 96,607,994.11
  5. Step 5: Solve for x
    x = 96,607,994.11/10,898.99
  6. Step 6: Final answer
    x = 8,863.94

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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.