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Finding the Fourth Proportional to 10,368.76, 15,554.94 and 4,821.04

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Solution

The fourth proportional to 10,368.76, 15,554.94 and 4,821.04 is: 7,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.76 : 15,554.94 = 4,821.04 : x
  2. Step 2: Convert to fraction form
    10,368.76/15,554.94 = 4,821.04/x
  3. Step 3: Cross multiply
    10,368.76x = 15,554.94 × 4,821.04
  4. Step 4: Simplify right side
    10,368.76x = 74,990,987.94
  5. Step 5: Solve for x
    x = 74,990,987.94/10,368.76
  6. Step 6: Final answer
    x = 7,232.40

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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.